An onomatopoeic reference to the drum sound effect heard after a punchline has been told (called a percussive sting). "ba dum" is the sound of the snare drum and "tss" the cymbal.

It is often used in a sarcastic manner after a cliched or bad joke has been told.
John: "My essay on the cold war has to be finished tomorrow, I'm really Russian to finish... sarcastically ba dum tss"
by John1001 June 6, 2015
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The sound of a lost soul, begging for acceptance in a world of people that don't think their joke is funny.
by cheesisnice August 3, 2019
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Ba dum tss είναι ο ήχος των drums!
Για να καταλάβετε καλύτερα πατήστε στο YouTube ''Ba Dum Tss'' και θα σας εμφανιστεί !
by yolooooswag February 11, 2014
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A sound made by the beating of a drum
Bruv make that drum go ba dum tss.
by Artapel Mazambane July 13, 2021
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An onomatopoeic sound usually heard after a dad joke
My essay on the Cold War has to be finished tomorrow. I’m really Russian to get finish. *sarcastically* ba dum tss
by sdmn :) May 15, 2020
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